/Engine/Source/Runtime/SlateCore/Public/Widgets/SWindow.h
The size of the window necessary to accommodate the given content
static [UE::Slate::FDeprecateVector2DResult](API\Runtime\SlateCore\Types\FDeprecateVector2DResult) ComputeWindowSizeForContent ( [UE::Slate::FDeprecateVector2DParameter](API\Runtime\SlateCore\Types\FDeprecateVector2DParameter) ContentSize )